Operating valve



oct. 14, i924. @3511.554

A. l. WOODRING OPERATING VALVE Filed Sent. '4. 1923 QZ-56,7%@ I,Woodrzlg,

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Patented Oct. 14, 1924.

UNITED STATES ALBERTO I, WOODRING, OF WATERLOO,

IOWA, ASSIGNOR TO NATIONAL SAFETY DEVICES COMPANY, 0F WATERLOO, IOWA.

ornRATING VALVE.

Application inea september 4, 1923. serial No. 660,789.

To aZZ whom t 'may concern.'

Be it known that l, ALBERTO I. WOODRING, a citizen of the United Statesof America, and a resident of Vaterloo, Black Hawk County, Iowa, haveinvented certain new and useful Improvements in Uperating Valves, ofwhich the following is a specication.

My invention relates to improvements in operating valves, and the objectof my improvement is to supply a device of this class with valvularelements and means for releasably controlling them, adapted for occa--sional initial actuation in permitting the passage through the device toa receptacle of iluid under pressure and upon termination .of suchactuation to simultaneously out olf such fluid supply and to exhaustfrom the receptacle the residual fluid therein by way of the device.

The above object I have successfully accomplished by the means which arehereinafter described and claimed, and which are illustrated in theaccompanying drawing, the latter being a full size central verticalsection of my device as separated from both its source of Huid supplyand from a receptacle for such supply.

It is to be understood that changes inthe precise embodiment ofinvention herein vdisclosed can be made within the scope of what isclaimed without departing from vthe spirit of the invention.

Specifically, as shown, my device is designed and operable as means forcontrolling the supply of a fluid under pressure, such ,as compressedair, other gas, vapor or liquid, -to a mechanism or a motor capable ofutilizing the same for power or otherwise, as a receptacle containing apiston movable by fluid pressure thereagainst. After an actuation ofsaid device to admit fluid und-er pressure to such a cylinder and theemployment of the fluid in the latter to produce power movement of thepiston, it is necessary to provide for the exhausting from the cylinderof the residual fluid, and this is effected by way of the passages of mydevice upon cessation of the action of the initially employed impulseupon the elements movably mounted therein.

The valve-chamber comprises the main body l having van upper chamber 23and a lower chamber 24. A supply inlet passage 28 'has a coned .andlthreaded terminal part 3U for connection to a pipe or other conduitleading kto a supply of air or other fluid under pressure and leads intothe upper part of the chamber 24. A similar passage 27 has its outer endconed and threaded at 29 for connection to a conduit leading into apistoncontaining cylinder `or other device not shown for utilizing vthepower of the fluid under pressure which has traversed the valve-chamberfrom the lower part of the upper chamber 23. A horizontal septumseparates `the chambers 23 and 24 and contains a port or passage 25which effects oc casional communication between Vthe chambers, the portbeing-controlled by :means of a cupped valve 8 in the 'chamber 21 vwhosehollow is fitted with an elastic annular .packing ring 9 to engage thelower face of said septum tightly when the valve is .in its elevatedposition. The valvestem of said valve is interior-ly threaded to receiveadjustingly the depending threaded part 12 of a closure-body or head llwhich projects into the upper chamber 23, an integral quadrately widenedand channeled part 10 `fitting within the passage 25 to slide up anddown therein. l

The lower portion of the chamber 24C is interiorly threaded to receive acupped plug 2 into whose hollow the lower end of the valve-stem may movedownwardly freely, a coiled compression spring 13 being mounted aroundsaid valve-stem and engaged ubetween the lower face of the valve 8 andthe interior .shoulder of the cupped plug 2. This spring normallyretains the valve 8-9 upon its seat to close the passage 25.

The upper part ofthe body '1 is tapped wit-h a lconcentric wider openingcommunieating with the chamber 23 and interiorly threaded to receive theeXteriorly threaded lower part of a hollow plug 3. The lower part of thehollow of said plug is of slightly less diameter than the chamber 23,and the lower end of the plug engages a shoulder to eifect a'tightjoint. The plugs 3 and 2, have respectively orificed ears 20 and 22, and21, to receive screws or other fastening devices to aiiix the device tosupporting-means. The upper part of the plug 3 is diminishedcylindrically to receive a split clampingbody 7 thereon, said bodyhaving at its split a pair of lugs 18 oriiiced in line to receive aconnecting and clampingscrew 19. The upper part of the body 7 is archedabove'the plunger whose upper upper end of the plug 3 and has at oneangle a hole extending through it from front to rear tovseat a pintle 17secured by a splitpin. The arched top of the body 7 is also slottedvordeeply groovedV from one side to the other to receive a iiattened end oian operating handled arm 14, thisl iiattened part being pivotallymounted on the plntle 17 and having a cam-face 15 along its lower edge.y

The numeral 4 denotes a reciprocatory cylindrical and diminished head isiitted within the upper diminished hollow or bore of the plug 3 toproject upwardly ltherefrom ywhen raised. Upon this plunger is anintegral annular shoulder which engages the shoulder at the junction ofthe upper and lower hollows of said plug 3. The lower part of theplunger is eXteriorly-threaded to receive an interiorlythreaded sleeve5, and a cupped leather gasket 6 is tted upon the plunger and engagedbetween the upper end of the sleeve 5 and the lower face of saidshoulder to elastically pack and eiect a tight joint between the plungerand its incasing plug walls. rlhe plunger is centrally longitudinallybored at 26 to open lat its lower end, the upper end of the bore beingclosed, but a lateral port being provided at 16 which opens to theatmosphere when the plunger is in its raised position, but is closedwhen the plunger is suiiiciently lowered.v The lower end of the bore 26is conically widened to fit the upper end of the boss or part 11 belowto close the bore at times. e,

The device is placed in operation by manually depressing the operatingarm or lever 14 whose cam-edge 15 slides upon and pushes downwardly theplunger 4 closing the port 16. The lower engages the upper end of thebody 11, closing the bore 26 at that end and also depressing the body 11to open the valve 8 9 while compressing the spring 13. This allowscompressed airv to pass from the lower chamber 24 by way of the passage25, the upper chamber 28 and the passage 27 to the communicationsleading to the power operated devices not shown. Work having been donein said communicating power-plant, the residual air is automaticallyexhausted therefrom, when the oper ating lever 14 is released. Thespring 13 reacts to return the valve 8 9 to shut oft the supply of air,while simultaneously the body 11 pushes up the plunger 4 part way. Asthe lower end of the plunger and also the gasket 6 are differentially oflarger area than the contacting top of the body 11 the residual air inthe chamber 23 still under pressure pushes up the plunger 4 stillfarther` when the body 11 and valve 8-9 have arrived at their upperlimit of travel, to leave the lower end of the` bore 26 in vcomend ofthe plunger munication with said chamber 23 while the port 16 is open tothe atmosphere, whereby such residual air is exhausted aty once to theatmosphere.

My improved operating valve is applicable to many uses within the scopeof the invention, as in the operation of signale ing devices, brakes, orany other devices adapted to be controlled or actuated by a fluid underhead.

Having described"my invention, what l claim as new, and desire to secureby Letters Patent, is:

v.1. A device of the character described, comprising al valve casinghaving inlet and outlet ports, a resiliently-controlled valve in saidcasing to control the communication between said ports, said casinghaving a chamber communicating with the said ports by way of said valve,and said vcasing having a bearing aperture leading from said chamber, areciprocatory body fitting said aperture andhaving a passage foroccasional communication between said 'chamber and the atmosphere, andsaid body having its ber of larger diii'erential area than the saidvalve with its passage positioned for being closed by said valve attimes when the body is moved to push the valve to an open position.

2. A device lof the character described, comprising a valve casinghaving inlet and outlet ports, a resiliently-controlled valve in saidcasing to control the communication between said ports, said casinghaving a chamber communicating between the said part which extends intosaid chainV ports by way of said valve, and said casing having a bearingaperture leading Jfrom said chamber, a reciprocatory body fitting saidaperture and having a passage for occasional communication between thechamber and the atmosphere, said body having its inner part providedwith an annular piston of greater diiierentialiarea than that part ofthe valve contacted by the body when the latter is moved to contactvwith and pushy the valve to Yopen position, and the passage in said bodyhaving its inner end closed by Vthe valve contact while the upper end ofthe passage is closed by the casing, and means for moving said body tosaid'valve-opening position while tensioning the resilient valvecontrolling means. l

3. A device of the character described, comprising a valve casing havinga chamber therein, inle-t and outlet ports, and a valve-seat with avalve controlling its opening from the inlet portrto vsaid chamber, saidoutlet port opening into said chamber, and said casing having anapertured bearing, a body movable in 'said apertured bearing and havingan exhaust-passage therethrough and movableA against said Valve to openit, means for reaetively returning the valve when released by said body,the passage in said body being closed by the valve while contactingtherewith, 5 the body having an enlargement acted upon by residual fluidunder pressure in said chamber when the Valve is closed after aotuationthereof by the body and release, to move the body out of Contact of theValve, 10 exhausting the fluid in the chamber without the casing throughsaid exhaust-passage, and a hand-lever mounted pivotally upon saideasing having a cam thereon adapted to move the said body against thevalve releasably when the lever is swung in one direction.

Signed at Waterloo, Iowa, this 4th day of Aug. 1923.

ALBERT@ I. WOODRING,

